It will be in the public domain in the USA, but not anywhere else (other than those oddball countries with no copyright laws). Anything published prior to 1923 is in the US public domain, regardless of when the author died. So yes, you can upload it here, and request that it be moved to our US server.

Given that E.M. Forster is a major novelist, and this was published in 1911 in the UK, there seems very little reason to doubt that it would have been published in the US at some point prior to 1923. Unless anyone can show that it actually wasn't, I think we're safe in hosting it on our US server.